Balthasar seegmuller



@inittab taies @anni @Hita i VBAL-THASAR 'SEEGMULLER, 0F NEW YORK, N. Y.

' Latem Patent No. 67,140, me .my 23, 1867.

IMPROVEMENT IN COMBINED .KNOB-LATCH AND LOOK.

dlgs Scintille referat tain iigrsr ttitrrs what mit mating met at tigesamt.

TO ALL WHONI I'I MAY CONCERN:

Be it known that I, BALTBASAR SEEGMLLER, of the city and State of NewYork, have invented, made, and applied to use a certain new and usefulImprovement in Locks; and I do hereby declare the following to be afull, clear, and exact description of the said invention, referencebeing had to the annexed drawing, making part of this specification,wherein- Figure 1 is an elevation of my said lock with the cap-plateremoved and in the position adapted to use as a latch. i i

Figure 2 is a similar view with the parts in position vfor use with akey; and

Figure 3 is an elevation of the exterior of the lock-case. I

Similar marks of reference denote the same parts.

My improved lock is adapted to use as a lock operated by a key, or alatch operated by a handle, a hooked tumbler being provided between thebolt and the saddle of the handle, so that when said hooked tumbler isdisconnected from the latch-bolt it can lbe projected further, andoperated only by the key or by a stud inside the door; or when said hookis connected to the saddle of the handle the bolt becomes only aspring-latch `operated by the handle, the end of the latch beinginclined so as to be pressed back in Closing the door.

In the drawing, a represents the lock-case, of any usual size orcharacter. b is the square for the spindle of the handle, with the camsc c, taking the saddle-piece d of the latch that slides in ways ontheinside of the lock-case. c is a sprinzgr to the said saddle, to projectit forwards, and, by the connecting hooked tumbler f, throw out thebolts. g is the latch-bolt, that is bevelled at its end, and guidedbetween studs or slides within the lock-case, so that it will slideendwise; and h is the key-stud for a key that acts upon the talon z' ofthe bolt, to project or retract the same. The tumblerf is set on a stud,o, upon the bolt, and kept down by the spring k. lis the hooked end ofthis tumblerf, taking a stud, n,on the saddle. m is a knob on thetumbler f, passing through a slot, s, in the lock-case, which slot isformed with an offset that forms the tumbler-stud.

When the hook Zis over the stud n the lock works as'a latch, beingactedupon by the handle and thrown forward by the spring c, the shank of theknob m sliding freely in the slot s; but when the key is used thetumblerf is lifted and unhooked from the studn, and the bolt thrownforward into the position in iig. 2. The shank of the knob m fallingbehind the offset in the slot 8 prevents the lock being opened until thetumbler is raised by the key from the outside, or by the knob m from theinside, and the act of withdrawing the bolt connects the tumbler andbolt with the handle-saddle, so that it can act as a latch until thebolt is again projected by the key from the outside or the knob m fromthe inside. The latch' and look may be placed so that the bolt workseither horizontally or vertically.

What I claim, and desire to secure by vLetters Patent, is-

The hooked tumblerf pivoted on the bolt, and provided with a knobpassing through a slot in the lockcase, in combination with the saddleoperated by the handle, substantially as and for the purposes set forth.

In witness whereof` I have hereunto set my signature this sixteenth dayot' March, A. D.. 1867.

BALTHAZAR SEEGMUILER.

Witnesses:

CHAs. H. SMITH', Gao. D. WALKER.

